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Title: The statement, hiking up a mountain in the southwestern United States is like walking from Mexico to ... Post by: country3313 on Jan 22, 2018 The statement, hiking up a mountain in the southwestern United States is like walking from Mexico to Canada, refers to the fact that ________ change(s) with altitude and latitude.
A) carbon dioxide levels B) human population density C) vegetation D) oxygen levels E) levels of industrial air pollutants Title: The statement, hiking up a mountain in the southwestern United States is like walking from Mexico to ... Post by: Elayyyna on Jan 22, 2018 Content hidden
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